/**
 * Button Component Styles
 * Tous les styles de boutons avec support dark mode
 */

/* ===== BASE BUTTON STYLES ===== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-family-base);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-tight);
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  vertical-align: middle;
  cursor: pointer;
  user-select: none;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  gap: var(--space-2);
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn:disabled,
.btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* ===== BUTTON SIZES ===== */

.btn-sm {
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.btn {
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
}

.btn-lg {
  padding: var(--space-4) var(--space-6);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-lg);
}

/* ===== BUTTON MAIN (brand color) ===== */

.btn-main {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
}

.btn-main:hover {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: var(--color-text-inverse);
}

.btn-main:active {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}

/* ===== PRIMARY BUTTON ===== */

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-primary:active {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

/* ===== SECONDARY BUTTON ===== */

.btn-secondary {
  background-color: var(--color-neutral-600);
  color: var(--color-text-inverse);
  border-color: var(--color-neutral-600);
}

.btn-secondary:hover {
  background-color: var(--color-neutral-700);
  border-color: var(--color-neutral-700);
  color: var(--color-text-inverse);
}

/* ===== SUCCESS BUTTON ===== */

.btn-success {
  background-color: var(--color-success);
  color: white;
  border-color: var(--color-success);
}

.btn-success:hover {
  background-color: #218838;
  border-color: #1e7e34;
  color: white;
}

/* ===== DANGER BUTTON ===== */

.btn-danger {
  background-color: var(--color-danger);
  color: white;
  border-color: var(--color-danger);
}

.btn-danger:hover {
  background-color: #c82333;
  border-color: #bd2130;
  color: white;
}

/* ===== WARNING BUTTON ===== */

.btn-warning {
  background-color: var(--color-warning);
  color: var(--color-text-primary);
  border-color: var(--color-warning);
}

.btn-warning:hover {
  background-color: #e0a800;
  border-color: #d39e00;
  color: var(--color-text-primary);
}

/* ===== INFO BUTTON ===== */

.btn-info {
  background-color: var(--color-info);
  color: white;
  border-color: var(--color-info);
}

.btn-info:hover {
  background-color: #138496;
  border-color: #117a8b;
  color: white;
}

/* ===== OUTLINE BUTTONS ===== */

.btn-outline-primary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline-primary:hover {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
}

.btn-outline-secondary {
  background-color: transparent;
  color: var(--color-text-secondary);
  border-color: var(--color-border);
}

.btn-outline-secondary:hover {
  background-color: var(--color-bg-hover);
  color: var(--color-text-primary);
  border-color: var(--color-border-dark);
}

.btn-outline-success {
  background-color: transparent;
  color: var(--color-success);
  border-color: var(--color-success);
}

.btn-outline-success:hover {
  background-color: var(--color-success);
  color: white;
  border-color: var(--color-success);
}

.btn-outline-danger {
  background-color: transparent;
  color: var(--color-danger);
  border-color: var(--color-danger);
}

.btn-outline-danger:hover {
  background-color: var(--color-danger);
  color: white;
  border-color: var(--color-danger);
}

.btn-outline-warning {
  background-color: transparent;
  color: var(--color-warning);
  border-color: var(--color-warning);
}

.btn-outline-warning:hover {
  background-color: var(--color-warning);
  color: var(--color-text-primary);
  border-color: var(--color-warning);
}

.btn-outline-light {
  background-color: transparent;
  color: var(--color-text-inverse);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-outline-light:hover {
  background-color: rgba(255, 255, 255, 0.2);
  color: var(--color-text-inverse);
  border-color: rgba(255, 255, 255, 0.5);
}

/* ===== LINK BUTTON ===== */

.btn-link {
  background-color: transparent;
  color: var(--color-primary);
  border-color: transparent;
  text-decoration: none;
  font-weight: var(--font-weight-normal);
}

.btn-link:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
  background-color: transparent;
  border-color: transparent;
}

/* ===== BUTTON WITH ICON ===== */

.btn-icon {
  padding: var(--space-2);
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-icon.btn-sm {
  width: 28px;
  height: 28px;
  padding: var(--space-1);
}

.btn-icon.btn-lg {
  width: 44px;
  height: 44px;
  padding: var(--space-3);
}

/* ===== BUTTON LOADING STATE ===== */

.btn.loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}

.btn.loading::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  top: 50%;
  left: 50%;
  margin-left: -8px;
  margin-top: -8px;
  border: 2px solid currentColor;
  border-radius: 50%;
  border-top-color: transparent;
  animation: button-spin 0.6s linear infinite;
}

@keyframes button-spin {
  to { transform: rotate(360deg); }
}

/* ===== BUTTON GROUP ===== */

.btn-group {
  display: inline-flex;
  gap: 0;
}

.btn-group .btn {
  border-radius: 0;
  border-right-width: 0;
}

.btn-group .btn:first-child {
  border-top-left-radius: var(--radius-md);
  border-bottom-left-radius: var(--radius-md);
}

.btn-group .btn:last-child {
  border-top-right-radius: var(--radius-md);
  border-bottom-right-radius: var(--radius-md);
  border-right-width: 1px;
}

.btn-group .btn:not(:first-child):not(:last-child) {
  border-radius: 0;
}

/* ===== RESPONSIVE ===== */

/* ===== MAIN BUTTON (Legacy - Alias for Primary) ===== */

.btn-main {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border: none;
}

.btn-main:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-text-inverse);
}

.bg-main {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
}

/* ===== RESPONSIVE ===== */

@media (max-width: 576px) {
  .btn {
    font-size: var(--font-size-sm);
    padding: var(--space-2) var(--space-3);
  }

  .btn-sm {
    font-size: 0.75rem;
    padding: var(--space-1) var(--space-2);
  }
}